What is a Mug Cake?
A mug cake is a single-serving cake cooked in a coffee mug or ramekin using a microwave oven. It is a quick and easy dessert that can be made in a few minutes, making it a popular choice for those who want a homemade treat without the effort of baking a full-sized cake – perfect for those with a sweet tooth.
What do You Need to Make Biscoff Mug Cake?
- Butter: Making a cake, even a mug cake, is all about balance; it should be moist but firm enough to maintain its structure without drying out.
- Flour: Cake flour produces light and fluffy bakery-style yellow cake. All-purpose flour can be too heavy.
- Biscoff Cookie: Use Biscoff cookies in the batter and sprinkle some on top of the mug cake for an extra crunch and another layer of Biscoff goodness.
- Sweeteners: Sweeten the single serving treat with brown sugar.
- Baking Powder: Baking powder adds a perfect amount of lift.
- Egg: Use one egg to bind the ingredients and give the cake its warm yellowish color.
- Milk: Milk perfectly balances the creaminess of the other ingredients.
- Oil: Oil contributes to the overall moistness of the cake and makes for easy cleanup.
- Biscoff Cookie Butter: Melt the nutty cookie butter and drizzle it over the top of the Biscoff mug cake.
How to Make Biscoff Mug Cake
The full recipe with measurements is in the recipe card below.
Step 1: Warm butter in a microwave-safe mug or ramekin until melted.
Step 2: Then, add the cake flour, Biscoff cookie, sugar, baking powder, egg, milk, and olive oil. Whisk to combine.
Step 3: Wipe down the sides of the mug and microwave for 1 minute.
Continue cooking for 30 seconds at a time (depending on the strength of your microwaves).
Check the cake with a toothpick; it should come out dry when it’s finished cooking.
Step 4: Melt the Biscoff Cookie Butter in the microwave for 20 seconds using the melt function. Stir and drizzle it on top, followed by the crumbled Biscoff Cookies.
Expert Tips
- Select the right size mug. Using one that is too small will cause the cake to overflow, while a large one will prevent the cake from reaching the top.
- Use room temperature ingredients to ensure they incorporate and cook perfectly – especially the butter.
- Spoon and level the ingredients into the measuring cups for accuracy.
- Gently stir the batter until the ingredients are combined; over-mixing produces a dense and tough final cake.
- Wipe down the sides of the mug before cooking to ensure the cake properly rises.
- If you prepare more than one cake at a time, increase the cooking time.
- Slide a butter knife around the edge to loosen up the cake and place it on a plate before decorating it if you want a fancier-looking cake.
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Serving Suggestions
Finish the mug cake with gooey, melted Biscoff Cookie Butter and Biscoff cookie crumbles for a bit of crunch. Add ingredients like fresh berries, sliced bananas, chopped nuts, or chocolate chips to garnish the dessert, or consider replacing the cookie butter with melted Nutella or nut butter. Here are some other toppings to consider.
- Vanilla Ice Cream
- Whipped Cream
- Chocolate or Caramel Sauce
What to do With the Leftovers
- Refrigerate – Biscoff mug cake is best eaten fresh, but if you have leftovers, cover it with plastic wrap until you’re ready to dig in. It will keep in the refrigerator for 2-3 days.
Frequently Asked Questions
Can you bake mug cakes in the oven?
Divide the batter into two prepared ramekins and bake them at 350℉ (176℃) for 8-10 minutes. You can also try my air fryer mug cake recipe!
What is the flavor of Biscoff?
Biscoff cookies are richly spiced and possess a deep caramel flavor, giving them their signature flavor.
What do Biscoff cookies taste like?
Biscoff cookies (also known as Lotus Biscoff Cookies or Speculoos Cookies) have a unique and distinct flavor described as a combination of caramel, cinnamon, and gingerbread. The cookies have a slightly crunchy texture with a delicate crumble; enjoy them with a cup of tea or coffee, or add them to your baked goods!
Is Biscoff the same as speculoos?
Yes, Biscoff and speculoos refer to the same type of spiced shortcrust biscuit. Originating from Belgium, speculoo biscuits contain flour, brown sugar, butter or oil, and warm spices like cinnamon, ginger, cloves, and nutmeg. The Lotus brand first commercialized them under the name Biscoff in 1932. Biscoff and speculoos are similar sweet and crunchy biscuits you can enjoy with coffee or tea. Get it – biscuits and coffee?
More Biscoff Recipes:
Biscoff Mug Cake
- Mug
- 1 tablespoon butter, melted
- 4 tablespoons cake flour
- 2 Biscoff Cookies, crumbled, plus more for garnish
- 2 tablespoons brown sugar
- ¼ teaspoon baking powder
- 1 egg
- 3 tablespoons milk
- 1 tablespoon olive oil
- 2 tablespoons Biscoff Cookie Butter, melted
- Warm butter in a microwave-safe mug or ramekin until melted.
- Then, add the cake flour, Biscoff cookie, sugar, baking powder, egg, milk, and olive oil. Whisk to combine.
- Wipe down the sides of the mug and microwave for 1 minute. Continue cooking for 30 seconds at a time (depending on the strength of your microwaves). Check the cake with a toothpick; it should come out dry when it's finished cooking.
- Melt the Biscoff Cookie Butter in the microwave for 20 seconds using the melt function. Stir and drizzle it on top, followed by the crumbled Biscoff Cookies.
- Select the right size mug. Using one that is too small will cause the cake to overflow, while a large one will prevent the cake from reaching the top.
- Use room temperature ingredients to ensure they incorporate and cook perfectly- especially the butter.
- Gently stir the batter until the ingredients are combined; over-mixing produces a dense and tough final cake.
- Wipe down the sides of the mug before cooking to ensure the cake properly rises.
- If you prepare more than one cake at a time, increase the cooking time.
- Slide a butter knife around the edge to loosen up the cake and place it on a plate before decorating it if you want a fancier-looking cake.
- The nutritional information shown is an estimate provided by an online nutrition calculator. It should not be considered a substitute for professional advice.